DL 4654 then DL 2144 at Atlanta
Knoxville → Atlanta → Madison
Timetable, Atlanta time
09:44DL 4654 from Knoxville at the gate
21:45DL 2144 to Madison leaves the gate
12 h 01 apart on the timetable
DL 2144 leaves 12 h 01 after DL 4654 arrives on the timetable: more than half a day, so not a connection we count.